/**
 * <copyright>
 * </copyright>
 *
 * $Id$
 */
package de.jadehs.cosima.impl;

import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.common.notify.NotificationChain;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.InternalEObject;
import org.eclipse.emf.ecore.impl.ENotificationImpl;

import de.jadehs.cosima.CosimaPackage;
import de.jadehs.cosima.Expression;
import de.jadehs.cosima.Regex;
import de.jadehs.cosima.Tape;

/**
 * <!-- begin-user-doc -->
 * An implementation of the model object '<em><b>Regex</b></em>'.
 * <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * <ul>
 *   <li>{@link de.jadehs.cosima.impl.RegexImpl#getExpression <em>Expression</em>}</li>
 *   <li>{@link de.jadehs.cosima.impl.RegexImpl#getTape <em>Tape</em>}</li>
 * </ul>
 * </p>
 *
 * @generated
 */
public class RegexImpl extends ProgramImpl implements Regex {
	/**
	 * The cached value of the '{@link #getExpression() <em>Expression</em>}' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getExpression()
	 * @generated
	 * @ordered
	 */
	protected Expression expression;
	/**
	 * The cached value of the '{@link #getTape() <em>Tape</em>}' reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getTape()
	 * @generated
	 * @ordered
	 */
	protected Tape tape;
	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected RegexImpl() {
		super();
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	protected EClass eStaticClass() {
		return CosimaPackage.Literals.REGEX;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public Expression getExpression() {
		return expression;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public NotificationChain basicSetExpression(Expression newExpression, NotificationChain msgs) {
		Expression oldExpression = expression;
		expression = newExpression;
		if (eNotificationRequired()) {
			ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, CosimaPackage.REGEX__EXPRESSION, oldExpression, newExpression);
			if (msgs == null) msgs = notification; else msgs.add(notification);
		}
		return msgs;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setExpression(Expression newExpression) {
		if (newExpression != expression) {
			NotificationChain msgs = null;
			if (expression != null)
				msgs = ((InternalEObject)expression).eInverseRemove(this, EOPPOSITE_FEATURE_BASE - CosimaPackage.REGEX__EXPRESSION, null, msgs);
			if (newExpression != null)
				msgs = ((InternalEObject)newExpression).eInverseAdd(this, EOPPOSITE_FEATURE_BASE - CosimaPackage.REGEX__EXPRESSION, null, msgs);
			msgs = basicSetExpression(newExpression, msgs);
			if (msgs != null) msgs.dispatch();
		}
		else if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, CosimaPackage.REGEX__EXPRESSION, newExpression, newExpression));
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public Tape getTape() {
		if (tape != null && tape.eIsProxy()) {
			InternalEObject oldTape = (InternalEObject)tape;
			tape = (Tape)eResolveProxy(oldTape);
			if (tape != oldTape) {
				if (eNotificationRequired())
					eNotify(new ENotificationImpl(this, Notification.RESOLVE, CosimaPackage.REGEX__TAPE, oldTape, tape));
			}
		}
		return tape;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public Tape basicGetTape() {
		return tape;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setTape(Tape newTape) {
		Tape oldTape = tape;
		tape = newTape;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, CosimaPackage.REGEX__TAPE, oldTape, tape));
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public NotificationChain eInverseRemove(InternalEObject otherEnd, int featureID, NotificationChain msgs) {
		switch (featureID) {
			case CosimaPackage.REGEX__EXPRESSION:
				return basicSetExpression(null, msgs);
		}
		return super.eInverseRemove(otherEnd, featureID, msgs);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public Object eGet(int featureID, boolean resolve, boolean coreType) {
		switch (featureID) {
			case CosimaPackage.REGEX__EXPRESSION:
				return getExpression();
			case CosimaPackage.REGEX__TAPE:
				if (resolve) return getTape();
				return basicGetTape();
		}
		return super.eGet(featureID, resolve, coreType);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eSet(int featureID, Object newValue) {
		switch (featureID) {
			case CosimaPackage.REGEX__EXPRESSION:
				setExpression((Expression)newValue);
				return;
			case CosimaPackage.REGEX__TAPE:
				setTape((Tape)newValue);
				return;
		}
		super.eSet(featureID, newValue);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eUnset(int featureID) {
		switch (featureID) {
			case CosimaPackage.REGEX__EXPRESSION:
				setExpression((Expression)null);
				return;
			case CosimaPackage.REGEX__TAPE:
				setTape((Tape)null);
				return;
		}
		super.eUnset(featureID);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public boolean eIsSet(int featureID) {
		switch (featureID) {
			case CosimaPackage.REGEX__EXPRESSION:
				return expression != null;
			case CosimaPackage.REGEX__TAPE:
				return tape != null;
		}
		return super.eIsSet(featureID);
	}

} //RegexImpl
